Growth of dwarf cashew seedlings irrigated with treated domestic effluent

Abstract

The use of wastewater in agriculture can be considered an important alternative in the preservation of natural resources. With this objective an experiment was installed and conducted for the use wastewater of domestic origin in the growth phase of dwarf cashew seedlings clone CCP76. The experimental design was in a completely randomized block design with five treatments and five replicates. The treatments employed were as follows: T1 (100% residual water - AR), T2 (75% AR + 25% water supply - AA), T3 (50% AR + 50% AA), T4 (25% AR + 75% AA) and T5 (100% AA). There were four evaluation at every 10 days after germination (DAG) and the following parameters were evaluated: stem diameter, leaf number, leaf area, shoot and root length, fresh and dry weight of shoot and root system. The variables were not adversely affected by the use of wastewater except for dry weight of root and leaf area during the study period, and may be an alternative for the cultivation of cashew seedlings Clone CCP76.